Finaplix is a veterinary cattle implant, which contains the potent androgenic steroid trenbolone acetate. This is the same drug which was once available as an injectable in the U.S, labeled Finaject, although it's production has been discontinued here and worldwide for about a decade. Finaplix was the last remaining pure trenbolone acetate, however it too has now been discontinued and replaced with Revalor, trenbolone acetate with a small amount of estradiol, an estrogen (see Revalor). Trenbolone acetate is a potent androgen, which will not readily convert to estrogen.